Wire lift-needle for jacquard mechanism.



PATENTED JULY 12, 1904.

W. WATTIE. I WIRE LIFT NEEDLE FOR JAGQUARD MECHANISM.

APPLICATION FILED MAY 5, 1904.

N0 MODEL.

UNITED STATES Patented July 12, 1904.

PATENT OEEIoE.

WILLIAM IVATTIE. OF WORCESTER, MASSACHUSETTS, ASSIGNOR TO- CROMPTON &KNOIV LES LOOM WORKS, A CORPORATION OF MAS- SACHUSETTS.

WIRE LIFT-NEEDLE FOR JACQUARD MECHANISM.

SPECIFICATION forming part of Letters Patent No. 764,968, dated July 12,1904. Application filed May 5, 1904. Serial No. 206,469. (No model.)

To all whom it may concern.-

Be it known that I, WILLIAM WVATTIE, a citizen of the United States,residing at Worcester, in the county of I/Vorcester and State ofMassachusetts, have invented certain new and useful Improvements in ireLift-Needles for Jacquard Mechanism, of which the following is aspecification.

My invention relates to wire lift-needles for jacquard-machine's, andmore particularly to an improvement on my wire lift-needle shown anddescribed in my United States Letters Patent No. 394,800. In said patentthe confining-band, which ties the two parts of the lift-needletogether, is located below the lower hook on the needle, and the band iscompressed upon and fastened to both wires of the U -shaped part of theneedle. I have found in practice that the confining-band on the needlein said patented construction being below the lower hook on the needleis liable to chafe and produce friction on the lift-bar on theguide-plate in the movement of the guide-plate and the needle. I havealso found that the confining-band being compressed upon and fastened toboth wires of the U-shaped part of the needle the main upright wire ofthe needle cannot bend or give between its ends or from its lower end,but is rigidly held at about its middle point intermediate its ends bythe confining-band compressed thereon. This is objectionable, especiallyin the case of short lift-needles, for it requires more power to movethe upper hook end of the needle away from the grid, and the ends of thehorizontal indicator needles or wires connected with the lift-needlesare liable to punch holes in the jacquard-cards.

The object of my invention is to improve upon the construction of mypatented liftneedle and to overcome the objections above mentioned.

In my improvements I place the confiningband above the lower hook on theneedle and above the lift-bar on the guide-plate, and I do not compressthe confining-band on both wires of the needle, so that the needle isfree to bend or give between its ends or from its lower end, as will behereinafter fully described.

Referring to the drawings, Figure 1 shows a wire lift-needle of myimproved construction, with a detached section of the grifi' and of theguide-plate. The broken lines show the main u n'ight part of the needlebent between its ends within the confiningband. Fig. 2 is a sectionthrough the confining-band and the needle, taken at a point indicated byline 2 2, Fig. 1; and Fig. 3 corresponds to Fig. 2, but shows a modifiedconstruction.

In the accompanying drawings, 1 is the guide plate, having an opening 1therethrough and the lift-bar 2 thereon, and 3 is the griif.

l is the lift-needle, which is bent back upon itself in the usual way toform the U-shaped part, which extends through the opening 1 in theguide-plate 1.

On the upper end of the needle 4 is the top hook 4, adapted to catchover the grifl' 3 in the usual way. At about the middle of the needle 4:is the lower hook 4E, adapted to catch over the lift-bar 2 on theguide-plate 1 in the ordinary way. The hook 4 has its projecting endbent backwardly toward the main part of the needle 4 and then bentupwardly and substantially parallel with the main part of the needle 4to form an attaching end for the confining-band 5, which is preferablymade of sheet metal. One end of the confining-band 5 is in this instancecompressed upon the upper free end 4 of the hook L and secured thereon.The other end of the confining-band 5 is in this instance left open, asshown in Fig. 2, to loosely receive the main part of the needle l andallow said needle to freely move therein away from the grifi' 3, asshown by broken lines.

The advantages of my improvements will be readily understood by thoseskilled in the art.

It will be seen that by placing the confining-band 5 above the lift-bar2 the same cannot come into contact with the lift-bar, and there is noliability of any friction or wearing of the band. By leaving theconfiningband open, so that the main part of the liftneedle 4: can movefreely therein, the whole length of the main part of the lift-needle Lis free to move from the extreme lower end to the top hook t.

It will be understood that the details of construction of myimprovements may be varied, if desired.

The confining-band 5 may be compressed on the main part of theneedlo4cand loose on the end 4 on the hook 4, as shown in Fig. 3, ifpreferred.

Having thus described my invention, what I claim as new, and desire tosecure by Letters Patent, is

1. The combination with a wire lift-needle having a double portion atits lower end, and a hook thereon, with its end bent upwardly and towardthe main part of the needle, of a band on the main part of the needle,and on the end of the hook, substantially as shown and described.

2. The combination with a wire lift-needle of U shape at its lower endand havinga hook thereon, of a band attached to one part of the needleabove said hook, and the other part of the needle free to have a lateralmotion within said band, substantially as shown and described.

3. The combination with a wire lift-needle, having the U-shaped portionat its lower part, and the lower hook with an upturned end, of a bandattached to said upturned end, and

loosely encircling the main part of the needle, I

substantially as shown and described.

WILLIAM VVATTIE.

Witnesses:

JOHN C. DEWEY, MINNA HAAs.

